# plot.fasp

##### Plot a Function Array

Plots an array of summary functions, usually associated with a
point pattern, stored in an object of class `"fasp"`

.
A method for `plot`

.

- Keywords
- spatial

##### Usage

```
plot(x)
plot(x, formula=formula)
plot(x, formula=formula, subset)
```

##### Arguments

- x
- An object of class
`"fasp"`

representing a function array. - formula
- A formula or list of formulae indicating what
variables are to be plotted against what variable. If
`formula`

is a list, its $k^{th}$ component should be applicable to the $(i,j)^{th}$ plot where`x$which[i,j]=k`

. I - subset
- A logical vector, or a vector of indices, or an
expression or a character string, or a
**list**of such, indicating a subset of the data to be included in each plot. If`subset`

is a list, its $k^{th}$ component should be - lty
- A vector of integers indicating line types to be used in forming the plot.
- col
- A vector of integers indicating colours for the different lines which form the plot.

##### Details

An object of class `"fasp"`

represents
an array of summary functions, usually associated with a point
pattern. See `fasp.object`

for details.
Such an object might be created, for example, by `alltypes`

or `allstats`

.

The function `plot.fasp`

is
a method for `plot`

. It calls `conspire`

to do the
actual plotting.

For information about the interpretation of the
arguments `formula`

, `subset`

, `lty`

and `col`

,
see `conspire`

.

The argument `title`

, if present, will determine the
overall title of the plot. If it is absent, it defaults to `x$title`

.
Titles for the individual plot panels will be taken from
`x$titles`

.

##### Value

- None.

##### synopsis

plot.fasp(x,formula=NULL,subset=NULL,lty=NULL,col=NULL,title=NULL,...)

##### Warnings

The new classes and methods of S version 4 have not been
used here. Hence, this function falls over in some versions of S-PLUS
if a formula is given explicitly
as an argument, unless either this argument is presented in the
``name=value'' format, **or** this function is called explicitly
as `plot.fasp`

and **not** as `plot`

. There is no
problem in R.

(Each component of) the `subset`

argument may be a
logical vector (of the same length as the vectors of data which
are extracted from `x`

), or a vector of indices, or an
**expression** such as ```
expression(r<=0.2)< code="">, or a text string,
such as
```

`"r<=0.2"< code="">.`

Attempting a syntax such as ```
subset = r<=0.2< code=""> (without
wrapping
```

`r<=0.2< code=""> either in quote marks or in `

`expression()`

)
will cause this function to fall over.

Variables referred to in any formula must exist in the data frames
stored in `x`

. What the names of these variables are will
of course depend upon the nature of `x`

.

##### See Also

##### Examples

```
library(spatstat)
# Bramble Canes data.
data(bramblecanes)
X.G <- alltypes(bramblecanes,type="G",dataname="Bramblecanes",verb=TRUE)
plot(X.G)
plot(X.G,subset="r<=0.2")
plot(X.G,formula=cbind(asin(sqrt(km)),
asin(sqrt(theo))) ~ asin(sqrt(theo)))
plot(X.G,fo=cbind(km-theo,0)~r,"r<=0.2")
# Swedish pines.
data(swedishpines)
X <- allstats(swedishpines,dataname="Swedish Pines")
plot(X,subset=list("r<=20","r<=20","r<=20","r<=50"))
# Simulated data.
pp <- runifpoint(350, owin(c(0,1),c(0,1)))
pp$marks <- factor(c(rep(1,50),rep(2,100),rep(3,200)))
X.K <- alltypes(pp,type="K",verb=TRUE,dataname="Fake Data")
plot(X.K,fo=cbind(border,theo)~theo,"theo<=0.75")
```

*Documentation reproduced from package spatstat, version 1.2-1, License: GPL version 2 or newer*